Related Clues:

• Robert Alexander Watson- --, Scottish physicist
• ___-hour
• Light amount?
• Unit of light flux
• Steampower pioneer
• 'W' on a light bulb
• Giant of the Industrial Revolution
• Joule/second
• What the W on lightbulbs stands for
• Big name in Texan football J.J
• Engineer, __ did you say, did you say?
• Improver of the Newcomen steam engine
• Point put by a teetotal engineer
• Steam engine pioneer James
• Amount of power in what one hears